package org.o14x.alpha;

import java.io.File;
import java.io.IOException;
import java.net.URL;

import org.apache.commons.io.FileUtils;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.o14x.alpha.preferences.PreferenceConstants;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {

	// The plug-in ID
	public static final String PLUGIN_ID = "org.o14x.alpha";

	// The shared instance
	private static Activator plugin;

	/*
	 * * The constructor
	 */
	public Activator() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext
	 * )
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;

		Bundle springDM = Platform.getBundle("org.springframework.bundle.osgi.extender");
		springDM.start();

		initializeShellContextMenu();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext
	 * )
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/*
	 * * Returns the shared instance
	 * 
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}

	/*
	 * * Returns an image descriptor for the image file at the given plug-in
	 * relative path
	 * 
	 * @param path the path
	 * 
	 * @return the image descriptor
	 */
	public static ImageDescriptor getImageDescriptor(String path) {
		return imageDescriptorFromPlugin(PLUGIN_ID, path);
	}

	private void initializeShellContextMenu() {
		//String sep = System.getProperty("file.separator");
		String sep = "/";
		String executable = "/ShellContextMenu" + sep + "ShellContextMenu.exe";
		String params = " 10000 {0}";
		String shell = "";
		if (!System.getProperty("os.name").startsWith("Windows")) {
			executable = "/ShellContextMenu" + sep + "scm";
			params = " {0}";
			shell = "bash "; // prefix with shell, otherwise we would need to make executable
		}

		String metadata = getStateLocation().toOSString();
		String file = metadata + sep + executable;
		String executableWithParams = shell + file + params;

		IPreferenceStore store = getPreferenceStore();
		store.setDefault(PreferenceConstants.SHELL_CONTEXT_MENU_EXECUTABLE, executableWithParams);

		// copy executable from plugin location (jar or directory depending on
		// how the plugin was installed)
		// to metadata directory (i.e. $HOME/.metadata/.plugins/contextmenu)
		if (new File(file).exists()) {
			return; // already initialized
		}

		try {
			URL url = getBundle().getEntry(executable);
			System.out.println(url);
			System.out.println(executable);
			System.out.println(file);
			
			FileUtils.copyURLToFile(url, new File(file));
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}
